In the rear of the car is a 5mm peg hole which can be used to mount the post for his vehicle mode weapon. For further comments on the Stunticon vehicle weapons design see my review of Dragstrip which can be found here.
Transform: (very similar to Dragstrip) Remove the vehicle mode gun, pull the rear of the car back,fold the bonnet back and stand on the rear of the car with the underside facing forward. Place his black Scattershot gun in his hand.
Wildrider's robot mode has red arms, black chest centre & head and, at least on the earliest versions of the toy, metal sides to the chest. Articulation, as per the other Stunticons, is limited to the shoulders turning.
Wildrider can form a limb for Menasor or any of the other Special Team/Scramble City style combiners:
Arm Mode: Take the car mode, fold the head down under the car and plug into a shoulder socket. Insert a fist into the 5mm peg hole at the rear.
Leg Mode: Take the car mode, fold the bonnet back, connect the head to the bottom of Motormaster's leg and peg a foot into the 5mm hole in the back of the car.
The instructions show Wildrider serving as Menasor's left leg.
Again, Wildrider feels perfectly fine in all his modes. His problem, and that of his fellow Stunticons, is that they all feel vaguely similar. Dragstrip's vehicle mode is a little more distinctive but the other three all feel the same. Essentially two transform one way and two transform another, they all have the same articulation and they all look similar in robot mode. The same problem afflicts the Aerialbots too.
Wildrider was released in the US & UK in 1986 as Stunticon S-4 and was also available in the Menasor giftset. In Japan he was numbered D-53 and also sold in the D-55 Menasor giftset. He was re-released in Europe in 1990 as a gold carded European Classics toy. In the mid nineties a supply of the Chinese Menasor giftsets entered the UK and were available in toyshops over here.
Wildrider's sole reappearance as a Transformers toy came with Henkei Wildrider, a Japanese repaint of Classics Rodimus which was an exclusive item from the "Chara Hobby 2008" show in Japan on August 30th, 2008. This toy is similar to the western Botcon 2008 Shattered Glass Rodimus.
However since it's the only existing repaint of Wildrider we can hold out hope that when a reissue of the Stunticons eventually comes along E-Hobby will provide us with this as an exclusive repaint.
Apparently Alternators Decepticharge was originally to be named Wildrider but the trademark could not be secured. The yellow colour scheme is similar to that used (or rather, in the end not used!) for the G2 toy.
Paint Wildrider white & black and he'd make an OK Wheeljack.